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Specifications

Sensidyne Tube 121U — Specifications
Measuring range0.1-2.0 ppm 0.05-1.0 ppm
Sampling time1 minute/1 pump stroke
Detectable limit0.02 ppm (200mr)
Shelf life2 years
Operating temperature0 – 40 °C
Colour changePale yellow → Pink
Reaction principle(II), Hydrogen chloride is produced and PH indicator is discoloured